Sorting desktop and server memories

[fancom]

Hi guys, I'm a newbie here and I desperately need help! I have a whole bunch of old memories that don't have sticker on most of them. They are different sizes and types. I just want to sort them so I can throw out those are useless now and get rid of the rest to a hardware store. I didn't have any knowledge on RAM so I searched to see what types we have so far. After reading How stuff works, I think most of them are SIMM and DIMM modules based on their looks (pretty long), and they are desktop and/or server memories. And that's all I have so far.

So how can I know what speed each one has? and how should I sort them out? Should I sort them by the names of the manufacturers on the memories or should I sort by the names of the companies which sell/use them (HP, IBM, Siemens...)? And how do I know if they are server or desktop memories?

Thank you so much!!!

 

[mavalpha]

Desktop RAM will have either four, eight, or sixteen chips on each stick, all the same size.
Server RAM will have:
Nine chips instead of eight; the last one is used for parity calculations.
May have some extra, smaller chips in the center. This is used for buffering the DIMM.
No way to tell speed/capacity without plugging them in, short of looking up individual chip specs online.

SIMMs:
Sorry, I don't remember that far back.

DIMMs:
Two notches on the bottom, SD-RAM. PC66/100/133.
One notch on the bottom, close to center- DDR2. Chips on these are usually small and squarish. More importantly, all of the solder-points are underneath.
One notch on the bottom, off-center (not by much)- DDR. Chips can be larger, solder "legs" are on the sides in most cases. Notable exceptions: anything by KingMAX, Micron/Crucial "M16FD" DDR400/500.

FYI:
http://www.rigacci.org/wiki/lib/exe/fetch.php/doc/appunti/hardware/ddr2.jpg
Top is DDR2, bottom is DDR